[tex-eplain] How do I test for TeX or eTeX

[Guy Worthington]

Thanks Daniel for the reply.

> I would advise just hard coding the first three assignments. You seem to
> want \rmfam to be 0, so put \chardef\rmfam=0. Do the same with families 1,
> 2, and 3, and then rely on the allocation mechanism of \newfam to set the
> rest. In etex, \count18 will already be 4, meaning the next available
> family, while in plainTeX, it will be 3, meaning the last allocated family.

Again I've decided to follow your advice.